CN211856549U - Water sample pretreatment detector and water sampling system using same - Google Patents
Water sample pretreatment detector and water sampling system using same Download PDFInfo
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- CN211856549U CN211856549U CN201922287486.2U CN201922287486U CN211856549U CN 211856549 U CN211856549 U CN 211856549U CN 201922287486 U CN201922287486 U CN 201922287486U CN 211856549 U CN211856549 U CN 211856549U
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Abstract
The utility model discloses a water sample pretreatment detector and a water sampling system using the same, which comprises a pretreatment container with an inner cavity and a water sample monitoring device; the pretreatment container is provided with a water inlet and an overflow outlet, and the overflow outlet is higher than the water inlet; a water retaining structure is arranged in the pretreatment container to divide the inner cavity into a pretreatment area communicated with the water inlet and a water sample area communicated with the overflow water outlet; the upper part of the water retaining structure is provided with a communicating opening for communicating the pretreatment area and the water sample area; the sampling end of the water sample monitoring device is arranged in the water sample area. The utility model has the advantages that: the sewage is pretreated before the water quality detection, so that the detection accuracy and efficiency are improved, and the damage of impurities to a water quality detection instrument is reduced; and meanwhile, a water level detection function is provided, so that equipment is prevented from carrying out meaningless idle running, the working efficiency is improved, and the service life of the equipment is prolonged.
Description
Technical Field
The utility model relates to a sewage treatment field especially relates to a water sample preliminary treatment detector and use its water sampling system.
Background
In the process of sewage treatment, parameters such as dosage, reaction time and the like need to be determined according to the water quality of sewage, so that the aim of treating the sewage is fulfilled. In the prior art, some measurement methods directly extract sewage from a sewage source for detection, some detection methods only perform simple filtration on the sewage for starting detection, the results obtained by the sewage detection methods may have great influence on reality, and some suspended matters or impurities in the sewage with large volume or hardness may damage water quality detection instruments.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water sample preliminary treatment detector and use its water sampling system to there is not enough of too much impurity in the sewage when solving sewage detection.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a water sample pretreatment detector comprises a pretreatment container with an inner cavity and a water sample monitoring device; the pretreatment container is provided with a water inlet and an overflow outlet, and the overflow outlet is higher than the water inlet; a water retaining structure is arranged in the pretreatment container to divide the inner cavity into a pretreatment area communicated with the water inlet and a water sample area communicated with the overflow water outlet; the upper part of the water retaining structure is provided with a communicating opening for communicating the pretreatment area and the water sample area; the sampling end of the water sample monitoring device is arranged in the water sample area.
The working principle of the technical scheme is as follows:
sewage passes through the water inlet and gets into the preliminary treatment district in the preliminary treatment container, and in the preliminary treatment district, impurity in the sewage can deposit in preliminary treatment district bottom, and after sewage in the preliminary treatment district was higher than water retaining structure, sewage can flow into water appearance district from preliminary treatment district, and the sewage in water appearance district has reached the standard that can directly be surveyed this moment, and water sample monitoring devices draws sewage from water sample district and detects as the water sample. When the sewage in the water sample area reaches a certain height, the sewage can flow out from the overflow outlet, so that the excessive water pressure in the pretreatment container is avoided.
Specifically, the water inlet is connected with a water inlet pipeline, and a filter is arranged on the water inlet pipeline. Before sewage enters the pretreatment container, impurities with larger volume are filtered out by a filter.
Specifically, the overflow water outlet is connected with an overflow pipeline, and a backflow section for guiding overflow water to be discharged is arranged below the pretreatment container of the overflow pipeline; the bottom of the water sample area is provided with a first drainage port, and the first drainage port is provided with a first drainage channel in an extending mode and communicated to the backflow section; a first control valve is arranged on the first drainage channel; the bottom of the pretreatment area is provided with a second water outlet, and a second water outlet channel is arranged at the second water outlet in an extending way and communicated to the backflow section; and a second control valve is arranged on the second water drainage channel. When too much water in the pretreatment container is over-pressurized, the sewage flows into an overflow pipeline through an overflow water outlet and flows back to the sampling pool through a backflow section; when the first control valve is closed, the water sample area stores water, when the first control valve is opened, the sewage in the water sample area is drained, new sewage flows into the water sample area from the pretreatment area, the water changing function is achieved, and meanwhile the water sample area can be cleaned; during normal operation, the second control valve is closed. The second control valve is opened mainly for draining the sediment at the bottom of the pretreatment zone.
The scheme also discloses a water sampling system, which comprises a first water pump and the water sample pretreatment detector, wherein the water outlet end of the first water pump is connected with the water inlet. The first water pump extracts and conveys sewage to the water sample pretreatment detector for water quality monitoring.
The water sampling device comprises a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the water inlet pipe is arranged at the water inlet end of the water inlet pipe; the water inlet end of the first water pump and the water inlet end of the second water pump are both connected into the sampling pool. This scheme adopts the water pump of two independent functions, and two water pump homoenergetic are only one of them water pump when drawing water in extracting sewage from the sampling pond and carrying to water sample preliminary treatment detector to the water sample, when this water pump trouble, switch another water pump.
Specifically, a third control valve for adjusting the size of the inflow water flow is arranged on the water inlet pipeline close to the water inlet, a pressure relief pipeline is arranged on the upstream branch of the third control valve of the water inlet pipeline, and the water outlet end of the pressure relief pipeline extends to the position of the sampling pool. Because the water flow in the water inlet pipeline is larger than that in the water sample pretreatment detector, the sewage enters the water sample pretreatment detector and may need to be limited by the water flow, and the third control valve plays a role in the restriction; the pressure relief pipeline is arranged to prevent the water inlet pipeline from being damaged due to overlarge water sample in the water inlet pipeline.
Specifically, the water sample pretreatment detector is provided with a water level sensing device in the water sample area, and the sensing end position of the water level sensing device is lower than the overflow outlet and higher than the sampling end position of the water sample monitoring device; the water sample sensing device is connected with a control module, and the control module is electrically connected with the water sample monitoring device, the first water pump and the second water pump. The water level sensing device senses water flow, represents normal operation of a working water pump, and transmits a signal to the control module, and the control module controls the water pump to operate continuously; if the water level sensing device cannot sense water flow within a period of time, the control module receives a signal and switches another water pump to perform sewage extraction work, which represents that the water pump may break down.
The utility model has the advantages that: the sewage is pretreated before the water quality detection, so that the detection accuracy and efficiency are improved, and the damage of impurities to a water quality detection instrument is reduced; and meanwhile, a water level detection function is provided, so that equipment is prevented from carrying out meaningless idle running, the working efficiency is improved, and the service life of the equipment is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a water collecting system in an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Description of reference numerals: 1. a water inlet pipe; 2. a fourth control valve; 3. a first water pump; 4. a fifth control valve; 5. a second water pump; 6. a pressure relief duct; 7. an overflow conduit; 8. a control module; 9. a water sample pipe; 10. a water sample pretreatment detector; 11. a water sample monitoring device; 12. a sampling pool; 13. a third control valve; 14. a filter; 15. a pretreatment vessel; 16. a water level sensing device; 17. a water retaining structure; 19. a water inlet; 20. a water overflow outlet; 21. a first control valve; 22. a second control valve; 23. a pretreatment region; 24. a water sample zone; 25. a second water discharge port; 26. a first drain opening.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1-2, a water sampling system includes a sampling tank 12, a water sample pretreatment detector 10, a first water pump 3, and a second water pump 5.
The first water pump 3 and the second water pump 5 can independently provide power for pumping sewage. In the present embodiment, the first water pump 3 is the same as the second water pump 5. Be provided with inlet channel 1 between sampling pond 12 and water sample preliminary treatment detector 10, first water pump 3 all inserts inlet channel 1 with second water pump 5, and first water pump 3 and second water pump 5 are connected with similar "parallelly connected" form, and first water pump 3 connects and inserts inlet channel 1 again on first pipeline, and the second water pump connects and inserts inlet channel 1 again on the second pipeline. A fourth control valve 2 is arranged between the first joint of the first pipeline and the water inlet pipeline 1 along the water flow direction and the first water pump 3, and a fifth control valve 4 is arranged between the second pipeline and the water inlet pipeline 1 along the first joint of the water flow direction and the second water pump 5.
The water sample pretreatment detector 10 includes a pretreatment container 15 and a water level sensing means 16. In this embodiment, the pretreatment container 15 is a constant flow cup with a detachable lid. The two sides of the constant flow cup are respectively provided with a water inlet 19 and an overflow outlet 20, and the constant flow cup is internally provided with a water retaining structure 17, wherein the water retaining structure 17 is applied as a water retaining plate in the embodiment. The overflow outlet 20 is located higher than the inlet 19 and also higher than the uppermost end of the splash plate. The constant flow cup is internally provided with a cavity, the cavity part between the water baffle and the water inlet 19 is a pretreatment area 23, and the cavity part between the water baffle and the water overflow outlet 20 is a water sample area 24. The pretreatment area 23 and the water sample area 24 are communicated with the space between the constant flow cup cover and the upper part of the water baffle.
The water inlet end of the water inlet pipeline 1 is positioned at the sampling pool 12, and the water outlet end is connected with the water inlet 19 of the constant flow cup. A third control valve 13 is arranged at the position of the water inlet pipeline 1 close to the water sample pretreatment detector 10 and is used for adjusting the water flow. In addition, in order to prevent the water pressure in the water inlet pipeline 1 from being too high, the water inlet pipeline 1 is also connected with a pressure relief pipeline 6. One end of the pressure relief pipeline 6 is connected between the water pump on the water inlet pipeline 1 and the third control valve 13, and the other end extends to the upper part of the sampling pool 12.
The control module 8 is arranged above the water sample pretreatment detector 10, and is applied to a PLC control system in the embodiment. The PLC control system is respectively electrically connected with the first water pump 3, the second water pump 5, the fourth control valve 2, the fifth control valve 4 and the water sample detection device 10.
The constant flow cup is further provided with a water level sensing device 16, in this embodiment, the water level sensing device 16 is applied as a water level probe, the water level probe is connected to the cup cover of the constant flow cup in a penetrating manner at a position corresponding to the water sample area 24, one end of the water level probe is connected with the control module 8, the other end of the water level probe faces the water sample area 24, and the height of the end is lower than that of the overflow outlet 20, so that the sewage is ensured to contact with the water level probe before flowing out of the overflow outlet 20.
A filter 14 is arranged between the water inlet 19 and the constant flow cup for primarily filtering the sewage to be introduced into the water sample pretreatment detector 10 and rejecting impurities with larger volume. The overflow outlet 20 is connected with an overflow pipeline 7, and when the water surface height of the water sample area 24 reaches the overflow outlet 20, sewage is discharged from the overflow outlet 20 to the overflow pipeline 7. The overflow pipe 7 is provided with a backflow section at the position below the constant flow cup and used for guiding overflow water to be discharged.
Be provided with first drain 26 in the bottom in water sampling district 24, first drain 26 communicates each other through between first drain and the overflow pipe 7, still is provided with first control valve 21 on the first drain, and in this embodiment, first control valve 21 uses as the solenoid valve, and this first control valve 21 is connected with control module 8 electricity. The bottom of the pretreatment area 23 is provided with a second water outlet 25, the second water outlet 25 is communicated with the overflow water pipe 7 through a second water discharge channel, and a second control valve 22 is further arranged on the second water discharge channel, in this embodiment, the second control valve 22 is implemented as a ball valve.
The water sampling system also comprises a water sample monitoring device 11, a water sample pipe 9 is connected between the water sample monitoring device 11 and the constant flow cup, and the sampling end of the water sample pipe 9 is positioned below the probe in the water sample area 24 of the constant flow cup; the monitoring end is positioned in the water sample detection device 11.
The working principle of the embodiment is as follows:
the first water pump 3 is used as a main water pump to extract sewage from the sampling pool 12 and convey the sewage into the constant flow cup, the sewage is firstly stored in the pretreatment area 23, meanwhile, impurities can be deposited at the bottom of the pretreatment area 23, when the sewage level of the pretreatment area 23 is higher than a water baffle, the sewage flows into the water sample area 24, when the sewage level of the water sample area 24 contacts a water level probe, the first water pump 3 is proved to have no fault, the first water pump 3 pumps water continuously for a period of time, and the water sample monitoring device 11 extracts the sewage from the water sample area 24 through the water sample pipe 9 to be used as a detection water sample; if the sewage surface of the water sample area 24 does not contact the water level probe within a period of time, the water level probe transmits a signal to the PLC control system, and the PLC control system sends an instruction to switch the second water pump 5 to extract sewage.
After the water sample monitoring device 11 performs the water sample detection for the first time, a signal is sent to the PLC control system, the PLC control system controls the first control valve 21 to open to drain the sewage in the water sample area 24, the water pump is started to pump water at the same time, the first control valve 21 is closed after the water is drained, and then the newly-extracted sewage enters the water sample area 24 again.
The preferred embodiment of the present invention is only listed in the present specification, and all the technical changes equivalent to those made under the working principle and thought of the present invention are considered as the protection scope of the present invention.
Claims (9)
1. A water sample pretreatment detector is characterized in that: comprises a pretreatment container (15) with an inner cavity and a water sample monitoring device (11); the pretreatment container (15) is provided with a water inlet (19) and an overflow outlet (20), and the position of the overflow outlet (20) is higher than the position of the water inlet (19); a water retaining structure (17) is arranged in the pretreatment container (15) to divide the inner cavity into a pretreatment area (23) communicated with the water inlet (19) and a water sample area (24) communicated with the water overflow outlet (20); a communication opening is formed in the upper part of the water retaining structure (17) to communicate the pretreatment region (23) with the water sample region (24); the sampling end of the water sample monitoring device (11) is arranged in the water sample area (24).
2. The water sample pretreatment detector of claim 1, wherein: the water inlet (19) is connected with a water inlet pipeline (1), and a filter (14) is arranged on the water inlet pipeline (1).
3. The water sample pretreatment detector of claim 1, wherein: the overflow outlet (20) is connected with an overflow pipeline (7), and a backflow section for guiding overflow water to be discharged is arranged below the pretreatment container (15) of the overflow pipeline (7).
4. A water sample pretreatment detector as defined in claim 3, wherein: a first drainage port (26) is formed in the bottom of the water sample area (24), and a first drainage channel extends from the first drainage port (26) to be communicated to the backflow section; and a first control valve (21) is arranged on the first drainage channel.
5. A water sample pretreatment detector as defined in claim 3, wherein: a second water discharge port (25) is formed in the bottom of the pretreatment region (23), and a second water discharge channel is formed in the second water discharge port (25) in an extending mode and communicated to the backflow section; and a second control valve (22) is arranged on the second water drainage channel.
6. A water sampling system is characterized in that: comprising a first water pump (3) and a water sample pretreatment detector (10) according to any of claims 1 to 5, the water outlet end of the first water pump (3) being connected to the water inlet (19).
7. The water collection system of claim 6, wherein: the water sampling device is characterized by further comprising a second water pump (5) and a sampling pool (12) for bearing a water source to be detected, wherein a water inlet pipeline (1) extends from the water outlet end of the second water pump (5) to be connected to the water inlet (19), and the water outlet end of the first water pump (3) is communicated with the water inlet pipeline (1); the water inlet end of the first water pump (3) and the water inlet end of the second water pump (5) are connected into the sampling pool (12).
8. The water collection system of claim 7, wherein: be close to water inlet (19) position, be provided with third control valve (13) that are used for adjusting into rivers size on inlet channel (1), inlet channel (1) in the upper reaches position branch of third control valve (13) is provided with pressure release pipeline (6), the play water end of pressure release pipeline (6) extends to sampling pool (12) position.
9. The water collection system of claim 7, wherein: the water sample pretreatment detector (10) is provided with a water level sensing device (16) in the water sample area (24), and the sensing end position of the water level sensing device (16) is lower than the position of the water overflow outlet (20) and higher than the sampling end position of the water sample monitoring device (11); the water level sensing device (16) is connected with a control module (8), and the control module (8) is electrically connected with the water sample monitoring device (11), the first water pump (3) and the second water pump (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287486.2U CN211856549U (en) | 2019-12-19 | 2019-12-19 | Water sample pretreatment detector and water sampling system using same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922287486.2U CN211856549U (en) | 2019-12-19 | 2019-12-19 | Water sample pretreatment detector and water sampling system using same |
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| CN211856549U true CN211856549U (en) | 2020-11-03 |
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| CN201922287486.2U Active CN211856549U (en) | 2019-12-19 | 2019-12-19 | Water sample pretreatment detector and water sampling system using same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798807A (en) * | 2021-02-08 | 2021-05-14 | 湾流智慧环境(深圳)有限公司 | Sequencing batch type sewage sampling device and intelligent water quality monitoring system |
| CN115436350A (en) * | 2021-10-15 | 2022-12-06 | 成都市华测检测技术有限公司 | Method for improving reliability of on-line continuous water quality detection |
| CN116804670A (en) * | 2023-06-20 | 2023-09-26 | 山东禹科检测技术有限公司 | Detection device and method for hydraulic engineering |
-
2019
- 2019-12-19 CN CN201922287486.2U patent/CN211856549U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798807A (en) * | 2021-02-08 | 2021-05-14 | 湾流智慧环境(深圳)有限公司 | Sequencing batch type sewage sampling device and intelligent water quality monitoring system |
| CN115436350A (en) * | 2021-10-15 | 2022-12-06 | 成都市华测检测技术有限公司 | Method for improving reliability of on-line continuous water quality detection |
| CN115436350B (en) * | 2021-10-15 | 2024-01-30 | 成都市华测检测技术有限公司 | Method for improving reliability of online continuous water quality detection |
| CN116804670A (en) * | 2023-06-20 | 2023-09-26 | 山东禹科检测技术有限公司 | Detection device and method for hydraulic engineering |
| CN116804670B (en) * | 2023-06-20 | 2024-05-17 | 山东禹科检测技术有限公司 | Detection device and method for hydraulic engineering |
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